I have been to thirteen different locations in the past four months, including multiple countries. In all places that I have been to, there are basic operating procedures that have served me well.
One is basic manners. The power of Ma’am, Sir, Thank you, and Welcome will open more doors than not.
Two, a firm handshake and looking someone in the eyes is a level set. I have meet vice presidents and presidents of companies and countries, dignitaries, operators, scientists, and technologists. Many have storied careers, degrees, and backgrounds that make me want to do better. Regardless, at the end of the day, we are all human. Firm handshakes and eye contact establish common respect.
Third, it is always good to have an exit strategy and be aware of your surroundings. Most of the world is safe, but do not be naive. If you feel that something is wrong, then something is wrong. It is primitive nature telling you something is wrong. People would not be alive today if their ancestors did not listen to their gut feeling.
Forth is to explore and initiate the conversation. The only way to experience life is by living it. One can not experience life by staying in the hotel lobby bar or ordering take-out. This mentality deprives people of what life offers and not meet interesting people. Instead, enjoy what the world has to offer.